Infra-Red Hearing Enhancement Systems – A brief overview
As with all audio devices, it all begins with the signal source. This can be a desk lectern microphone, a radio microphone, a conference system, or any other audio system. They all produce an electrical signal which contains the audio information.
This signal is then fed to the modulator via audio cables. The radiator diodes produce the infra-red light and radiate it into the room. Within this room the light signal can be received by any amount of receivers. The receiver then converts the light signal back into an electrical signal to be fed to the user worn receiver, by an Induction neck loop, or headphones connected to the receiver (where applicable).
Radiators transmit the processed audio signal to the neck worn receivers. The type and number of radiators determine the area of coverage. Depending on your application, you can choose between models with a higher or lower radiating power. Coverage ranges by two typical model types are SI30 – 80M² & SZI1015 – 800M².
Any number of Infra Red neck loop receivers can be used within this ‘coverage zone’ without the need for complicated hardware or software upgrades as the need increases. Also as the systems work in the Infra Red zone, the receivers can be utilised in other areas where a similar Infra Red System is operating, without the worry of complicated inter system compatibility issues.
Infra-Red systems have an advantage over standard ‘wired’ Induction Loop Systems in they have a greater degree of ‘confidentiality as the signal WILL NOT ‘overspill into adjacent rooms when in operation